Telescopic element for a displaceable partitioning wall

ABSTRACT

A telescopic element for a displaceable partitioning wall, includes a solid wall section for partially covering an opening in a building structure, and a telescopic section for covering a manoeuvring gap between the solid wall section and the building structure, The telescopic element, further includes an adjusting mechanism for deploying the telescopic section into a covering position covering the manoeuvring gap and a deployment of sealing lips of the solid wall section for sealing against the building structure. The adjusting mechanism includes an input shaft for receiving an adjusting movement and a distribution gearbox for the divided transmission of the adjusting movement to an upper telescopic gearbox and to a lower telescopic gearbox for deploying of the telescopic section. The two telescopic gearboxes each include a transmitting section for the transmission of the adjusting movement to an upper sealing gearbox and to a lower sealing gearbox, respectively, for deploying the sealing lips.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is related to and claims the benefit of German PatentApplication No. DE 102015108661.1, filed on Jun. 1, 2015, the contentsof which are herein incorporated by reference in their entirety.

TECHNICAL FIELD

The present disclosure relates to a telescopic element for adisplaceable partitioning wall as well as to a method for thedisposition of such a telescopic element in an opening of a buildingstructure.

BACKGROUND

It is generally known to close large openings in building structurestemporarily by means of partitioning walls. This arrangement is forexample the case in large conference rooms, which may be subdivided intosmaller units by means of displaceable partitioning walls. Usually, suchpartitioning walls include individual wall profiles, which may bedisplaced into the desired covering position by means of track systems.In this case, the last partitioning wall element, which forms thetermination towards the associated building structure, is usuallyequipped at higher expense. For example a manoeuvring gap needs to bemaintained for moving the last partitioning wall element into the finalposition thereof. So that nevertheless a complete termination to thebuilding structure may be provided, usually, such final partitioningwall elements are configured as telescopic elements. Therefore, theyinclude a solid wall section, which essentially may be configuredidentical or similar to the other partitioning wall elements. However,they are equipped additionally with the functionality of a telescopicsection, which, according to the arrangement in the final position, maybe moved into an appropriate covering position, in which the manoeuvringgap is likewise covered.

The known solutions are disadvantageous in that a high mechanicalexpense is required in order to be able to provide for an adjustmentmovement for deploying the telescopic section as well as for being ableto guarantee for deploying sealing lips at the top side and the bottomside of the telescopic element. In this case, complicated scissor-armmechanisms are employed, which perform said deployment movement,respectively transmit an appropriate adjusting movement to the desiredpositions. This circumstance results in that the interior space of sucha solid wall section of the telescopic element is usually filled withthe complicated adjusting mechanism. On the one hand, this arrangementreduces visual freedom, because in particular transparent telescopicelements will not be feasible. Moreover, the high complexity results inan increase in weight and in an increase of the risk of malfunctioning,because a complicated mechanism may have defects at the most differentlocations.

Therefore, the present disclosure overcomes the above-describeddisadvantages at least partially. The present disclosure furtherdevelops the adjusting mechanism in an inexpensive and simple manner.

SUMMARY

The above problem is solved by providing a telescopic element for adisplaceable partitioning wall, including a solid wall section forpartially covering an opening in a building structure, and a telescopicsection for covering a manoeuvring gap between the solid wall sectionand the building structure. The telescopic element includes an adjustingmechanism for a deployment of the telescopic section into a coveringposition covering the manoeuvring gap and for a deployment of sealinglips of the solid wall section for sealing against the buildingstructure, wherein the adjusting mechanism includes an input shaft forreceiving an adjusting movement, and a distribution gearbox for thedivided transmission of the adjusting movement to upper and lowertelescopic gearboxes for the deployment of the telescopic section,wherein the two telescopic gearboxes include a first transmittingsection configured for transmitting the adjusting movement to an uppersealing gearbox and the second telescopic gearbox includes a secondtransmitting section configured for transmitting the adjusting movementto a lower sealing gearbox for deploying the sealing lips.

The above problem is also solved by providing a method for arranging atelescopic element including the following steps: arranging the solidwall section in the final position; introducing an adjusting movementinto the input shaft of the adjusting mechanism for deploying thetelescopic section into the covering position; and continuingintroduction of the adjusting movement into the input shaft fordeploying the sealing lips for a sealing action against the buildingstructure. Features and details, described in conjunction with thetelescopic element, are obviously also valid in conjunction with theinventive method and respectively vice versa, such that mutual referenceis made, respectively may be made with respect to the disclosure ofindividual aspects of the disclosure.

According to the disclosure, a telescopic element is provided for adisplaceable partitioning wall. Said telescopic element includes a solidwall section for partially covering an opening in a building structure.Furthermore, a telescopic section is provided for covering a manoeuvringgap between the solid wall section and the building structure. Moreover,the telescopic element includes an adjusting mechanism for deploying atelescopic section into a covering position, in which the manoeuvringgap is covered, and for a deployment of sealing lips of the solid wallsection for a sealing action against the building structure. Theinventive telescopic element is distinguished in that the adjustingmechanism includes an input shaft for the reception of an adjustingmovement and a distribution gearbox for the divided transmission of theadjusting movement to an upper telescopic gearbox and a lower telescopicgearbox for deploying the telescopic section. In this case, the twotelescopic gearboxes include respectively one transmitting section forthe transmission of the adjusting movement to an upper sealing gearboxand to a lower sealing gearbox for deploying the sealing lips.

The inventive telescopic element is thus based on the basic embodimentof a solid wall section and a telescopic section for allowing to be ableto guarantee the desired positioning into a final terminal position inthe vicinity of a wall of a building structure. With the intention tocover the manoeuvring gap, the adjusting mechanism provides apossibility to displace the telescopic section into a covering position,in which the manoeuvring gap is covered. The sealing lips are disposedin particular at the top side and at the bottom side of the telescopicelement, so as to be able to guarantee a sealing action likewise againstthe ceiling and the floor in the final position of the telescopicelement. Deploying and retracting is necessary in order to be able tokeep the telescopic element movable in a desired manner, for example bymeans of a track system. Only once the telescopic element is disposed inthe final position thereof, the sealing lips are deployed andaccordingly an additional sealing action against the building structureis provided.

to An inventive core idea focuses on the explicit embodiment of theadjusting mechanism. In contrast to the complex scissor-arm mechanism,as included in the known telescopic elements, in a simple andinexpensive manner, a single input shaft is able to provide for acorresponding reception of the adjusting movement. By means of thedistribution gearbox, which may include gearing wheels but also leverstructures, a division and transmission of the adjusting movement to theupper and the lower telescopic gearboxes may be provided. In this case,with regard to their arrangement, an upper and lower telescopic gearboxare positioned one above the other. The upper telescopic gearbox islocated above the lower telescopic gearbox. The function of the twotelescopic gearboxes serves for deploying the telescopic section intothe covering position thereof. As long as in this application it isquestion of deploying sealing lips or telescopic sections, thisobviously also applies as a reversible movement such that the samemechanism and a reversal of the adjusting movement allows for retractingthe sealing lips, respectively for retracting the telescopic section inthe same technical manner.

According to the disclosure, the two telescopic gearboxes are equippedwith an additional function, namely the transmitting section fortransmitting the adjusting movement. In the solid wall element,respectively partially also in the telescopic element, the upper sealinggearbox and the lower sealing gearbox are configured to be able todeploy the upper sealing lip and the lower sealing lip for a sealingaction against the ceiling or against the floor. In contrast to theknown solutions of the telescopic elements, which essentially operateall of the gearboxes at the same time via complicated scissor-armmechanisms, in an inventive manner the transmission of the adjustingmovement to the sealing gearboxes is enabled via the telescopic gearboxitself. In other words, the upper telescopic gearbox and the uppersealing gearbox, respectively the lower telescopic gearbox and the lowersealing gearbox are configured as cascades of gears. Therefore, theadjusting movement for the sealing lips passes through the respectivetelescopic gearbox only to arrive in the respective sealing gearbox.

In an inventive telescopic element, the arrangement into the finalposition is realized in a way that an adjusting movement is introducedinto the input shaft in a manual or automated configuration. In thiscase, it may be in particular a rotary movement, namely a rotation.

Said adjusting movement is then transferred to the upper and lowertelescopic gearboxes such that the deployment of the telescopic sectionstarts. As will be explained in the following, the transmitting sectionis preferably configured for a mechanical closure sequence control suchthat during the introduction of the adjusting movement, the latter istransferred in the first time slot essentially exclusively to the twotelescopic gearboxes. Only after the telescopic section has beendeployed over a defined path via the telescopic gearboxes, thetransmitting section will be activated for the transmission of theadjusting movement to the two sealing gearboxes. Thus, so to say, aclosure sequence control is mechanically provided, which ensures thatonly after completing the deployment movement of the telescopic section,the start of the deployment movement of the sealing lips is realized. Inparticular, if the sealing lips are to be disposed partially in thesolid wall section and partially in the telescopic section, this is agreat advantage, because during the movement of the telescopic section,the sealing lips may not yet be in contact, respectively should not yetbe in contact.

It may be advantageous, if, in an inventive telescopic element, eachtelescopic gearbox includes a telescopic spindle, which is entrainedinto rotation by means of an adjusting movement, such that a spindle nutmoves along the spindle axis. In this case, the spindle nut is connectedin a force-transmitting manner to a telescopic lever, in order to movethis telescopic lever at a first end concurrently with the spindle nut.To the same extent, by means of the movement of the telescopic lever,the telescopic section, which is attached to the second end thereof, isdeployed. By arranging the two telescopic gearboxes in a verticaldirection spaced apart from each other as upper and lower telescopicgearboxes, in this manner a particularly stable deployment movement isallowed. The larger the distance is formed between the two telescopicgearboxes in vertical direction, the larger the tilt stability whendeploying the telescopic section. In contrast to the known solutions ofcombined scissor-arm mechanisms, in an execution according to thisembodiment, additional guiding means in the shape of tubes or otherguiding rails may be essentially completely foregone. However, it shouldbe noted in this case that the force-transmitting connection between thespindle nut and the telescopic lever may be configured both directly andindirectly. An indirect connection is in particular understood asinserting a spring element in between, as will be elaborated further inthe following section.

It is advantageous, if, in an inventive telescopic element, in bothtelescopic gearboxes, the spindle nut is connected in aforce-transmitting manner to the telescopic lever via a spindle springelement. This means namely, that it is question here of an indirectconnection between the telescopic lever and the spindle nut. Such aspindle spring element may be configured for example as a helical springaround the spindle. This circumstance results in that, when introducingan adjusting movement onto the telescopic section without acounter-force, the deployment movement will be performed in the knownmanner. As soon as the telescopic section abuts against a walling of thebuilding structure and contacts the latter, a correspondingcounter-force is created, which will be introduced into the spindlespring element. This means that the spindle spring element generates apre-tensioning force in this manner, which will allow for providing asealing force onto the telescopic section at the correspondingcontacting location towards the walling of the building structure.

It is likewise an advantage, if, in an inventive telescopic element, asupport lever is attached between the two ends of each telescopic lever,which lever supports the telescopic lever against the solid wallsection. All levers are equipped at their respective ends with rotationbearings in order not to adversely affect the desired leverfunctionalities. The support lever serves for being able to provide anadditional stabilization of the telescopic lever. In particular in thismanner the risk of spreading of the telescopic lever during thedeployment procedure will be reduced or even completely avoided.

Moreover, it is advantageous if, in an inventive telescopic element,each transmitting section of the two telescopic gearboxes includes acontacting surface for a touching contact with a counter-contactingsurface of the associated sealing gearbox. This represents aparticularly simple and inexpensive solution for providing thetransmitting functionality. The contacting surface touches thecounter-contacting surface and in this manner continues to move thecounter-contacting surface concurrently with the contacting surface bymeans of the adjusting movement. In this case, such a touchingcontacting action is configured in a reversible manner according to thedisclosure. In particular releasing and establishing the contact,depending on the movement position and the movement direction, areconceivable. In this case, the contacting surface and thecounter-contacting surface include in particular a two-dimensionalcontacting in order to be able to guarantee an improved and moreover amore tilt-stable transmission of forces, respectively transmission ofthe adjusting movement.

It is likewise advantageous, if, in an inventive telescopic element, ina retracted position of the telescopic section, a contacting distance isconfigured between the contacting surface and the counter-contactingsurface, the dimension thereof being variable by means of introducingthe adjusting movement into the adjusting mechanism. As elaborated inthe preceding section, the contacting between the contacting surface andthe counter-contacting surface is in particular configured to bereversible. For example in a completely retracted position of thetelescopic section, a defined contacting section may be given betweenthe contacting surface and the counter-contacting surface. If now theintroduction of the adjusting movement is realized, at the same time adeployment of the telescopic section and a movement of the contactingsurface and of the counter-contacting surface towards each other occur.The contacting distance will now adjust at what time in positioning thecontacting surface and the counter-contacting surface will touch eachother. This will be in particular the case, if the telescopic section iscompletely or essentially completely deployed. At this point in time,now a further movement of the telescopic gearbox will result in that,additionally respectively subsequently to deploying the telescopicsection, now to the transmission of the adjusting movement to thesealing gearboxes for deploying the sealing lips will be realized. Thisrepresents one possibility for providing a mechanical automatic closuresequence control.

It is likewise advantageous, if, in an inventive telescopic element,each sealing gearbox includes a sealing spring element, which isconfigured for the reception of the adjusting movement from thetransmitting section of the associated telescopic gearbox and chargesthe associated sealing lip with a spring force. In this case, saidsealing spring element also serves for transmitting the adjustingmovement to the sealing lip for the deployment procedure thereof. Thesealing spring element serves for providing a pre-tension onto therespective sealing lip, in particular as soon as the sealing lip abutsagainst the corresponding walling, respectively the ceiling or the floorof the building structure. In this case, the sealing spring element maydirectly or indirectly include an associated counter-contacting sectionfor the correlation with a contacting section of the transmittingsection. Furthermore, the sealing spring element is preferably equippedwith a variation device, in order to be able to vary and adjust thespring force and/or the contacting section already described above. Thisis in particular solved via an adjusting screw. The sealing springelement may be preferably configured with regard to reducing theconstructional dimension and the weight of a leaf spring.

It is furthermore advantageous, if, in an inventive telescopic element,the distribution gearbox is configured as an angled gearbox for arepartition of the adjusting movement with different directions ofmovement, in particular different directions of rotation, to the twotelescopic gearboxes. In this case, an angled gearbox is understood inthat the repartition will not only be realized with regard to thetransfer of an adjusting movement to two recipients of the adjustingmovement, but will moreover be able to consider in this manner differentdirections of movement during the repartition. Thus, the uppertelescopic gearbox will receive, with regard to a direction of rotation,for example a left turn as an adjusting movement, whereas the lowertelescopic gearbox will receive for example a right turn as thedirection of rotation as the adjusting movement. The two telescopicgearboxes are thus allowed, in particular for corresponding telescopicspindles, to have the same mechanical configuration, for example in theform of having the same thread orientation and thread pitch.Furthermore, this results in that during the mounting procedure of theentire telescopic element, a source of errors, namely an erroneouslyoriented telescopic spindle is essentially completely prevented.

Another advantage may be, if, in an inventive telescopic element, thetwo telescopic gearboxes are disposed one above the other at a border ofthe solid wall section. This arrangement is only possible by means ofthe inventive embodiment, because only the repartition and the cascadedarrangement of the telescopic gearboxes and of the sealing gearboxeswith regard to each other allows for a narrower embodiment of theadjusting mechanism. In this case, the border of the solid wall sectionincludes in particular of the border, at which also the telescopicsection is to be deployed. As a result, the central region of the solidwall section remains free and may be configured to be transparent aswell.

It is likewise advantageous, if, in an inventive telescopic element, theto sealing lips include respectively at least two overlapping sealinglip sections, wherein one of the two sealing lip sections is connectedto the telescopic section and the other one is connected to the solidwall section. Such a sealing lip may be configured as a telescopingsealing lip as well, such that, when deploying the telescopic section,said overlapping decreases with regard to their geometrical deploymentand also the sealing effect in the deployed condition of the telescopicsection may be provided at the entire upper side of the telescopicelement and at the lower side of the telescopic element.

Another advantage may be, if, in an inventive telescopic element, theadjusting mechanism includes a drive device for generating the adjustingmovement and the introduction into the input shaft. This means that anautomated adjusting movement is provided, in particular in the form ofan electric motor. Thus, it is an automated solution, which, for saidautomatic drive, may have provided for example for a battery or a powersupply within the telescopic element. As an alternative, also crankhandles at the exterior side are conceivable for a corresponding crankhandle connection for introducing the adjusting movement within theframework of the present disclosure.

A further subject matter of the present disclosure is a method for thearrangement of an inventive telescopic element in an opening of abuilding structure, including the following steps:

-   -   arranging the solid wall section in the final position,    -   introducing an adjusting movement into the input shaft of the        adjusting mechanism for deploying the telescopic section into        the covering position,    -   continuing the introduction of the adjusting movement into the        input shaft for deploying the sealing lips for a sealing action        against the building structure.

By employing an inventive telescopic element, the inventive methodoffers the same advantages as those explained in detail in relation tothe inventive telescopic element.

BRIEF DESCRIPTION OF THE DRAWINGS

Further advantages, features and details of the disclosure will resultfrom the following description, in which, reference being made to thedrawings, exemplary embodiments of the disclosure are described indetail.

In the drawings:

FIG. 1 shows an embodiment of a telescopic element,

FIG. 2 shows the embodiment of FIG. 1 in an enlarged representation,

FIG. 3 shows a telescopic gearbox in the embodiment of FIGS. 1 and 2,and

FIG. 4 shows the correlation between a telescopic gearbox and a sealinggearbox in the embodiment of FIGS. 1 and 2.

DETAILED DESCRIPTION OF THE DRAWINGS

FIGS. 1 and 2 show a technical solution of an embodiment of an inventivetelescopic element 10 with an opened walling. Therefore, just a viewinto the inside of the telescopic element 10 is possible. Basically, thetelescopic element 10 has two core sections, namely the solid wallsection 20 and the telescopic section 30. Here, the telescopic section30 is seen as a profile, to which the corresponding ceiling wallsections may be attached. Moreover, the illustration in FIG. 1 shows thecorrelation of such a telescopic element 10 in the final positionthereof with regard to a building structure 200. In this case, it iswell visible that a manoeuvring gap 210 is formed in the final positionbetween the solid wall section 20 and the building structure 200. Thetelescopic section 30 is to be displaced in the covering position APthereof into said manoeuvring gap 210, with the intention to be able toprovide here a fully and in particular sound-absorbing termination.

At the same time, deploying the sealing lips at the top side of thetelescopic element 10 and at the bottom side of the telescopic element10 is necessary for a particular advantageous sound-absorption. This isrealized by means of associated sealing gearboxes 70 a and 70 b.

FIG. 3 diagrammatically illustrates the configuration of a telescopicgearbox 60 b or of the upper telescopic gearbox 60 a. The two telescopicgearboxes 60 a and 60 b are in particular configured to be identical.FIG. 4 shows the correlation of the upper telescopic gearbox 60 a withthe upper sealing gearbox 70 a. For a better understanding, theindividual movement of the respective structural components with regardto performing the deployment procedure will be subsequently explainedwhile referring to all four Figures.

to Once the telescopic element 10 is disposed in the final positionthereof for the partitioning wall 100, as the one shown in FIG. 1, nowthe deployment of the telescopic element 30 into the covering positionAP thereof is to be performed. For this purpose, an adjusting movementis being introduced via an input shaft 42 into a distribution gearbox 44of an adjusting mechanism 40. This action may be realized via a drivedevice or manually by means of a crank handle. Now, said distributiongearbox 44 distributes the adjusting movement to the top and to thebottom into an upper telescopic gearbox 60 a and into a lower telescopicgearbox 60 b. Telescopic spindles 64, in which the adjusting movement istranslated into a rotation about a spindle axis SA, are provided in bothtelescopic gearboxes 60 a and 60 b. Accordingly, a relative rotationwith regard to the respective spindle nut 66 is performed during saidrotation such that depending on the rotational movement, the spindle nut66 moves to the top or to the bottom. For deploying the telescopicsection 30, an upward movement of the spindle nut 66 is realized at theupper telescopic gearbox 60 a and accordingly a downward movement of thespindle nut 66 is realized at the lower telescopic gearbox 60 b. In thismanner, via a spindle spring 65 in a force-transmitting contacting, theadjusting movement is relayed to the telescopic lever 68 such that thelatter is moved upwards in an associated oblong hole, which can be seenin the FIGS. 1, 2 and 4. As said oblong hole is provided as a fixedposition at the solid wall section 20, the other end of the telescopiclever 68 is pushed to the right hand outside and thereby displaces theprofile, which is a part of the telescopic section 30, to the right handside into the covering position AP thereof. A mechanical stabilizationis realized during this movement by means of the associated supportlever 69, as the one illustrated in the Figures.

In particular FIG. 4 shows that during an upwards movement of thespindle nut 66 at the upper telescopic gearbox 60 a, a contactingdistance KA between a contacting surface 63 of a transmitting section 62and an associated counter-contacting surface 73 of a spindle springelement 75 is reduced. At a predetermined point in time, a touchingcontact of the contacting surface 63 and the counter-contacting surface73 will occur such that now via the subsequent lever arm assembly alsothe upper sealing lip 50 and in the same manner the lower sealing lip 50will be deployed and pressed against the building structure 200. Therespective spindle spring element 75 serves for being able to guaranteean appropriate contacting pressure for increasing the sealing force. Inthe embodiment as shown in the FIGS. 1 to 4, the sealing lip 50 isconfigured in two parts in the shape of two sealing lip sections 52.These are disposed in a telescoping manner such that, when deploying thetelescopic section 30, a moving apart in a telescopic manner isperformed for the two sealing lip sections 52, such that, also in thecovering position AP of the telescopic section 30, it will be possibleto seal the entire upper part and the entire lower part of thetelescopic element 10.

The above explanation of the embodiment describes the present disclosureexclusively based on examples. Obviously, individual features of theembodiments, as long as they are technically reasonable, may be freelycombined with each other without departing from the scope of the presentdisclosure.

1. A telescopic element for a displaceable partitioning wall, includinga solid wall section for partially covering an opening in a buildingstructure, and a telescopic section for covering a manoeuvring gapbetween the solid wall section and the building structure, thetelescopic element comprising an adjusting mechanism for a deployment ofthe telescopic section into a covering position covering the manoeuvringgap and for a deployment of sealing lips of the solid wall section forsealing against the building structure, wherein the adjusting mechanismincludes an input shaft for receiving an adjusting movement, and adistribution gearbox for the divided transmission of the adjustingmovement to an upper telescopic gearbox and to a lower telescopicgearbox for the deployment of the telescopic section, wherein the firsttwo telescopic gearbox includes a first transmitting section configuredfor transmitting the adjusting movement to an upper sealing gearbox andthe second telescopic gearbox includes a second transmitting sectionconfigured for transmitting the adjusting movement to a lower sealinggearbox for deploying the sealing.
 2. The telescopic element accordingto claim 1, wherein the first telescopic gearbox and the secondtelescopic gearbox each includes a telescopic spindle entrained into arotation by means of the adjusting movement such that a spindle nutmoves along the spindle axis, wherein the spindle nut is connected to atelescopic lever in a force-transmitting manner for moving saidtelescopic lever at a first end concurrently with the spindle nut andfor deploying the telescopic section attached to a second end of thetelescopic lever.
 3. The telescopic element according to claim 2,wherein at both first and second telescopic gearboxes, the spindle nutis connected in a force-transferring manner to the telescopic lever viaa spindle spring element.
 4. The telescopic element according to claim2, wherein between the two ends of each of the telescopic levers, asupport lever is attached, which supports the telescopic lever againstthe solid wall section.
 5. The telescopic element according to claim 1,wherein each transmitting section of the first and second telescopicgearboxes includes a contacting surface for a touching contact of acounter-contacting surface of the associated sealing gearbox.
 6. Thetelescopic element according to claim 5, wherein in a retracted positionof the telescopic section, between the contacting surface and thecounter-contacting surface, a contacting distance is configured whereinthe dimension is varied by means of introducing the adjusting movementinto the adjusting mechanism.
 7. The telescopic element according toclaim 1, wherein each sealing gearbox includes a spindle spring elementconfigured for receiving the adjusting movement from the transmittingsection of the associated telescopic gearbox and charges the associatedsealing lip with a spring force.
 8. The telescopic element according toclaim 1, wherein the distribution gearbox is configured as an angledgearbox for distributing the adjusting movement with differentdirections of movement, onto the two telescopic gearboxes.
 9. Thetelescopic element according to claim 1, wherein one of the first andsecond telescopic gearboxes is disposed above the other at a border ofthe solid wall section.
 10. The telescopic element according to claim 1,wherein the sealing lips each include at least two overlapping sealinglip sections, wherein one of the two sealing lip sections is connectedto the telescopic section and the other is connected to the solid wallsection.
 11. The telescopic element according to claim 1, wherein theadjusting mechanism includes a drive device generating the adjustingmovement and the introduction into the input shaft.
 12. A method for thearrangement of a telescopic element having the features of claim 1 in anopening of a building structure, the method includes the followingsteps: arranging the solid wall section in the final position,introducing an adjusting movement into the input shaft of the adjustingmechanism for deploying the telescopic section into the coveringposition, and continuing introduction of the adjusting movement into theinput shaft for deploying the sealing lips for a sealing action againstthe building structure.